Sennheiser HD 450BT Wireless Headset White (508387) is an over-ear wireless headphone designed for everyday use and travel. It features active noise cancellation (ANC) for uninterrupted listening. It supports AAC and aptX Low Latency codecs for high-quality, low-latency audio. With 108 dB sensitivity and 60 Ohm impedance, it delivers powerful and balanced sound. Bluetooth 5.0 ensures stable wireless connectivity. It offers up to 30 hours of battery life with approximately 2 hours charging time. The Smart Control app provides EQ customization, Podcast Mode, and firmware updates. It also supports wired listening via a 3.5 mm jack.